Stone-sawing machine



UNITED STATES PATENT GFFICE.

RUFUS LESTER BARNEY, OF SWVANTON, ASSIGNOR OF ONE-HALF TO JOHN N.BAXTER, OF RUTLAND, VERMONT.

STONE-SAWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 404,335, dated May 28,1889.

Application filed October 18, 1888. Serial No. 288,416. (No model.)

To all whom it may concern.-

Be it known that I, RUFUS LESTER BARNEY, acitizen of the United States,and aresident of Swanton, in the county of Franklin and State ofVermont, have invented certain new and useful Improvements inStone-Sawing Machines; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to lettersor figures of reference marked thereon, which form a part of thisspecification.

Figure 1 of the drawings is a side view of this invention. Fig. 2 is anend view of the same.

The invention relates to improvements in stone-sawing machines; and itconsists more particularly in an improvement on the machine patentedFebruary 7, 1888, and numbered 377,595.

The object is to obviate the use of wearirons which are usually attachedto the sides or corners of the gangs. In using wear irons or boards itis found that they become quickly worn by the sand falling upon them,allowing the gang-frame to follow the worn places and doing inferiorwork. I obviate this difficulty by providing a swinging frame, which isrigidly braced, so that there is nolateral play to the gang-frame.

Referring to the drawings, A designates a portion of the gang-frame, andB represents corner-posts of the standing frame.

0 is a cross-bar having the sleeves to at its ends to engage and slideupon the slides D 011 the posts B. The cross-bar may be suspended in anywell-known manner.

E shows the hangers having a pivotal or swinging connection at theirupper ends with the cross-bar O, and pivoted at their lower ends to thelugs 12 on the gang-frame A. The said hangers are designed to allow alongitudinal movement or swing of the gang-frame, and to prevent lateralplay the braces F are rigidly secured to the respective hangers atdiagonallyopposite points, and the said braces may be bolted together attheir central or crossing point. The connection between the hangers Eand the cross-bar O is effected by means of rods f bearing in boxes fsecured to the under side of said bar, said rods also being connected byboxes to said hangers. The connection between the braces 5 5 F and thehangers E is effected by means of apertured projections or plates (Zupon the hangers, and through which said braces pass, "nuts e beingfitted upon the said braces upon each side of said plates or projections(Z. The braces at their points of crossing are provided with slots, andad j Listing-screw, bolt, and nut m.

Having described my invention, what I claim is 1. The gang-frame, incombination with the sliding cross-bars having a sliding combinationwith the upright supporting-frame, said gang frame being connected tosaid cross-bars by hangers pivoted to said frame and to rods bearingboxes applied to the under side of said cross-bars, substantially as setforth.

2. The gang-frame, in combination with the cross-bars having a slidingconnection with the upright supporting -frame, said gangframe beingconnected to said cross-bars by hangers pivoted to said frame and torods bearing in boxes applied to the under side of said cross-bars,whichcross-bars are connected together by braces having an adjustable orscrew-bolt and-slot connection at their crossing points, substantiallyas specified.

In testimony whereof I affix my signature in presence of two witnesses.

RUFUS LESTER BARNEY.

Witnesses:

RIGNEY D. MARVIN, E. M. PROUTY.

